Global Patent Index - EP 3226043 A1

EP 3226043 A1 2017-10-04 - METHOD FOR MANUFACTURING COLOUR LIGHT FILTER, COLOUR LIGHT FILTER AND DISPLAY DEVICE

Title (en)

METHOD FOR MANUFACTURING COLOUR LIGHT FILTER, COLOUR LIGHT FILTER AND DISPLAY DEVICE

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES FARBLICHTFILTERS, FARBLICHTFILTER UND ANZEIGEVORRICHTUNG

Title (fr)

PROCÉDÉ DE FABRICATION DE FILTRE DE LUMIÈRE EN COULEUR, FILTRE DE LUMIÈRE EN COULEUR ET DISPOSITIF D'AFFICHAGE

Publication

EP 3226043 A1 (EN)

Application

EP 15775063 A

Priority

  • CN 201410712552 A
  • CN 2015079472 W

Abstract (en)

The present invention relates to a method for manufacturing color filter, a color filter, and a display device including a color filter, to solve the problems of non-uniform edge luminance and color and poor contrast of prior liquid crystal display modules. The method for manufacturing a color filter includes: forming a black matrix on a transparent substrate; forming a photosensitive resist layer on the transparent substrate with the black matrix; disposing a reflection sheet capable of reflecting light on a first side of the transparent substrate to be exposed, the first side being provided with the black matrix; disposing a mask on a second side of the transparent substrate to be exposed, the second side being not provided with the black matrix; and carrying out an exposing process from the second side of the transparent substrate.

IPC 8 full level (invention and additional information)

G02B 5/20 (2006.01); G02F 1/1335 (2006.01); G03F 7/20 (2006.01)

CPC (invention and additional information)

G03F 7/0007 (2013.01); G02B 5/201 (2013.01); G02F 1/133516 (2013.01); G03F 7/20 (2013.01); G03F 7/2008 (2013.01); G03F 7/2022 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

EPO simple patent family

US 2016349611 A1 20161201; US 9568820 B2 20170214; CN 104360428 A 20150218; CN 104360428 B 20160824; EP 3226043 A1 20171004; EP 3226043 A4 20180801; WO 2016082495 A1 20160602

INPADOC legal status


2018-08-01 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20180629

2018-08-01 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: G02B 5/20 20060101AFI20180625BHEP

2018-08-01 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: G03F 7/20 20060101ALI20180625BHEP

2018-08-01 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: G02F 1/1335 20060101ALI20180625BHEP

2018-03-07 [DAV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (IN ANY COUNTRY) (DELETED)

2018-03-07 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2017-10-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20151013

2017-10-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2017-10-04 [AV] REQUEST FOR VALIDATION OF THE EUROPEAN PATENT IN:

- Countries: MA

2017-10-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: BA ME